Goodman, Lenn E., author
Routledge, 1992
Buku Teks
Sanai, Hakim
The Octagon Press, 1974
Buku Teks
Garrett, Ginger, 1968-, author
NavPress Indonesia, 2007
Buku Teks
Wilber, Donald N.
Princeton University Press, 1955
Buku Teks
Frye, Richard N.
Henry Holt and Company, 1953
Buku Teks